management reporter reports stuck in the que and won't run

I usually can get reports to work in Management Reporter, but had the same issue last year.  We currently have 2 years open and whenever I try to run a report in Management Reporter, the report will not run and stays in the que as processing.  When I try to cancel the report, cancelling just hangs out there.

Has anyone encountered this and if so, is there an easy solution?

thanks,

Laura